Paper-feeding mechanism



ay i3, 1924. 1,494.303 l A. BROADMEYER PAPER FEEDING MECHANI SM Filed Sept. 8 1921 2 Sheets-Sheet 1 '3M Vif @Hoz wagt f Mayls, 1924. 1,494,303

A. BROADMEYER l 'l PAPER FEEDING MECHANISM Filed Sept. 8 1921 2 snug-sneer 2 l@ ff' .m haustV passagewa Patented ift/ley 13, 1324i.,

ldlblllTEl@ STATE@ ALBERT BEODELEYER', 0F HARBISBURG,

menen' rane. eo., on :an sraymtm.

earner' PENNSYLVANIA, SSIGNOR TO TEE W. 0.

SBRG, PENNSYLVANIA, A CORPORATION OF PENN- nnnnn-rnmrne meenemen.

To all who/met may ce1/neem: Be it lmown that l, Amener BnoAnMnrnn. a citizen of the United States, residing at lHarrisburg, in the county of Dauphin and E6 State of Pennsylvania, have invented certain new and useful llmprovements in Paper-Feeding Mechanism, of which the following is a specication.l

The present invention relates to sheet l@ feeding apparatus, and more particularly to the suction means which engages the individual sheets and initially moves them.

rlhe primary object of the invention is the provision of simple mechanism that l will have a relatively even action throughout its extent, said means being simple to construct and assemble.

ln the accompanying drawings- Figure 1 is a plan view of a portion of a 2@ feeding apparatus, showing the improved mechanism,

Figure 2 is a sectional view on the line 2-2 of Figure 1,

Figure 3 is a detail longitudinal sectional viewon an enlarged scale through the suction means and associated parts.

Figure 4 is a cross sectional view on thel line 4 4 of igure 3. y Figure 5 is a detail lon 'tudinal sectional view through the channe ed rod conduit.

l In the structure disclosed, a suitable frame 6 is employed, in which is mounted the usual vertically movable table 7 on which the pile of sheets to be fed is placed.

Above the rear end of said table is located` adriving shaft 8 having a longitudinal keyway 9. A feeding head. 10 of cylindrical form is mounted on the 'shaft 8, beingslidable alon the same. t is held to 4rotate t@ with sai shaft by means of a ke or feather 11 engaged 1n the way 9. 'lhe cad is provided with longitudinally disposed sets of air intake orte 12, the sets or rows being disposed si e by side, andeach row opening into a chamber 13 preferably formed. by drilling a series of longitudinal bores into one endo thehead, said bores terminating short of the other end, as will be clear by reference to Figure 3'. An ex- 14 is provided for each chamber `13, and as a. port 15 opening into the central portion of the chamber, with which the passageway is associated. These eme:- also open through the end of l the head `10, through which the chambers 13 open.

Mounted in the frame in parallel relation ,to the shaft 8, is an exhaust conduit 15 vthat terminates in a longitudinal channel 16. This conduit 15a is coupled up to any suitable air exhausting mechanism. Surrounding the conduit/end slidable thereon is a sleeve 17 .that covers the channel 16 and this sleeve is provided with Ia neck 13 having a passageway 19 ltherein that is in communication with the channel 16. The free end of the neck 18 terminates in a head 20 that is in the form of an o'set collar-21` surrounding a hub 21a that is integral with the rotatable head 10 and projects from the end into which the chambers 13 and passageways 14 are drilled. The collar 21 is maintained on the hub 21a by any suitable means, asfor example nuts 22 and the passageway 19 terminates in an offset intake port 23 that successively registers with the outer ends of the passageways l14 as the head 10 rotates. It will be evident by reference to Figure 3 that when one of the passageways 14 is in communication with the intake port 23, the outer end of the corresponding chamber 13 is closed by the adj aeent face ofthe collar.

Assuming that there is a partial vacuum formed in the conduit 15 channel 16, assageway 19 and port 23, it will be obvious that as the head is rotated and the passageways 14 successivel register with the port l 23, air will be ex austed therefrom and from the chamber 13. Consequently if a sheet of pa r is brought into contact with the under slde of the head 10 it will be held against the same by the suction' and will be carried in the direction in which the lower side of the head rotates. As the open ends of the gas'sag'eways 14 pass the neck and collar t ey open to atmosphere, and thus the suction is broken. By avin the passageway 14 lcommunicate with t e central portion of the chamber 13, a more equal exhaust of air takes place through the various ports of each row or set, thereby securing a more' equal application of the hold` ing power to the sheet. 0bviously the structure is relatively simple and can be cheaply manufactured.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art,

without further description, and it will be understood that various changes in the size,

shape, proportion and minor details of con-1 struction may be resorted to without departing from the spirit or sacrificing any of the iadvantages of the invention.

Havin thus fully described my invention,-what claim as new, and desire to secure by Letters Patent, is:

1. In sheet feeding mechanism, the combination with a rotatable head having a pluralit of air intake means each disposed longitudinally ofgits axis of rotation and said means being arranged around its periphery and adapted to be successively brought into coaction with a sheet upon the rotation of the head, of air exhausting means thatcommunicates with the longitudinal central portion only of each of saidV air intake means.

2. In sheet feeding mechanism, the combination with a rotatable head having sets of air intake ports disposed around itsperiphery, each set being located longitudinally of the axis of rotation of the head,

and air exhausting means that communicates with the lon itudinal central portion only of each set 0% ports.

3. In sheet feeding mechanism, the. combination with a rotatable head arranged to be moved alongits axis of rotation, and having a plurality of radially disposed air intake ports, exhaust ports communicating with the radial ports, and an exhaust head mounted on the rotatable head to permit the rotatable head to rotate relative to the exhaust head but to carry the exhaust head with the rotatable head when the rotatable head is moved along its axis of rotation.

4. In sheet feeding mechanism, the combination with a rotatable head having a plurality oflongitudinally disposed air intake means located side by side around its periphery, of an exhaust passageway lfor each means having a central connection therewith, and an exhausting mechanism including. an intake port with which the passageways successivel communicate on the rotation of the hea 5. In sheet feeding mechanism, the coinbination with a rotatable head having a lurality of longitudinally disposed sets o air p intake ports, a common chamber with which the ports of each set communicate, of an exhaust passageway for each chamber having communication with the central ortion thereof, and an exhausting mechanism including an intake port with which the passageways successively communicate on the rotation of the head.

6. In sheet feeding mechanism, the combination with a rotatable head having a lurality of longitudinally disposed sets o air intake ports that independently open geen,

through the periphery of the head, a common chamber for each set and with which the ports of said set communicate, an exhaust passageway from each chamber, a connection between each common chamber and its exhaust passage between the end ports communicating with the chamber, and means for successively exhausting air through said passageways and from the respective chambers as the head is rotated.

7 In sheet feeding mechanism, the combination with a rotatable head having a hub, said head having a series of suction passageways opening through its periphery and through the end having the hub, a stationary exhaust head carried by the hub having an intake port with which the passageways successivelyl communicate during the rotation of the head, and means on the hub for taking up wear.

8. In sheet feeding mechanism, the combiel nation with a rotatable head having longitudinal sets of suction ports, a-chamber for each set of ports, an exhaust passageway for each chamber opening centrally thereinto and also opening through one end of the head, and an exhaust 'head at said end having an intake port across which the ends of the exhaust passageways pass as the head rotates.

9. In sheet feedin mechanism, the combination with a rotata le shaft, of a rotatable head carried thereby and shiftable therealong, said head having peripheral suction ports, and a non-rotatable head in which the rotatable head is journaled and connected so that the two will move together alongsaid shaft, said non-rotatable head having an exhaust passageway that communicates with the suction ports of the rotatable head.

10. In sheet feeding mechanism, the combination with a rotatable shaft, of a rotatable head carried thereby and shiftable there-- along, said head having peripheral suction ports, an exhaust conduit located alongside the shaft, and a coupling between the conduit and head forming a bearing for the head and slidable along the conduit and shaft and surrounding the latter, said coupling havingconnection with the suction ports.

11. In sheet feeding mechanism the combination with a rotatable shaft, of a rotatable head carried thereby and shiftable therealong, said head having peripheral suction ports, a channeled supporting rod located alongside the shaft, a sleeve slidable on the rod and covering the channel thereof, a neck carried by the sleeve and having a passageway therethrough, and a head on the neck provided with an intake port 'that communicates with the suction ports of the rotatable head, said heads being connected so as to be adjustable together along the shaft.

12. In sheet feeding mechanism, the combination with a rotatable shaft, of a head 130 said head having a plurality of longitudinal sets of intake ports, a chamber for each set of p'orts, and a suction, passageway for each chambers chamber communicatingwith the central portion thereof and having an outlet through one end of the head, a channeled supporting rod located alongside the shaft, a sleeve shdable on the rod and covering the channel thereof, a neck carried by the sleeve and having a passageway therethrough, and a head on the neck provided with an intake port that successively communicates with the passageways of the head as the latter is rotated.

13. In sheet feeding mechanism, the combination with a rotatable head having a se- -ries of longitudinal chambers opening through one end and a series of exhaust passageways communicating with the chambers and opening through the same end, said havin open communication through the perlphery of the head, and means for exhaustln the air from the chambers through the ex aust passageways, said means acting as a closure for the open ends of the chambers when the air is being exhausted.

14. In sheet feeding mechanism, the combination with a rotatable head having a series of longitudinal chambers opening through one end and a series of exhaust passageways communcatingwith the chambers and opening through the same end, said chambers having open communication throu h the peri hery ofthe head, and a secondv head at t at end of the rotatable head through which the chambers and passageways open, said head having an exhaust port with which the passageways communicate, and said second head constituting a closure for the open ends of the chambers when in communication with these passageways.

15. In sheet feeding mechanism, the combination with a rotatable head having a hub and provided with peripheral air intake means opening through its ends, of air .exhaust means surrounding the hub and communicating -with the portions of the airintake means that opens through the end of the rotatable head and adjustable means carried by the hub for maintaining a tight joint between the exhaust means on the hub and the head.

16. In sheet feedin mechanismL the combination with a. rotata le head having a projecting hub at one end, and provided with peripheral air intake ports and exhaust passageways communicating with the ports and openin through the end of the head having the huI a non-rotatable head journaled on and surrounding the hub, and means on the hub for retaining the nonrotatable head on the hub, said latter head having an exhaust passageway that successively communicate with the exhaust passageways of the rotatable head as the latter rotates. k

In testimony whereof, I aix my signature in the presence of two witnesses.

ALBERT BROADMEYER.

Witnesses:

C. W. BmmGroN. Ross A. Hronox. 

